Adjustable compression roller transmission mechanism for flying saw machine

Abstract

The utility model discloses an adjustable compression roller transmission mechanism for a flying saw, which belongs to the technical field of flying saws and comprises a transmission case, a gear shaft rotatably mounted in the transmission case and connected with a servo motor, a gear positioned in the transmission case and mounted on the gear shaft, and a rack meshed at the top of the gear. The rack seat is fixed at the top of the rack; and the compression roller is rotationally mounted between the two sides of the transmission box and is attached to the top of the rack seat. The limiting discs are arranged on the two sides of the pressing roller in a sliding mode, the inner threaded rings are used for extruding the limiting discs, the inner sides of the limiting discs and the outer sides of the rack seats are attached and positioned, the device can adapt to the rack seats with different widths in the using process, the applicability is higher, in addition, balls are rotationally installed on the inner sides of the limiting discs, and the service life of the device is prolonged. A traditional sliding friction mode is changed into rolling friction, abrasion of the rack base in the continuous moving process is effectively reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to a pressure roller transmission mechanism, in particular to an adjustable pressure roller transmission mechanism for a flying saw machine, belonging to the technical field of flying saw machines. Background Art

[0002] 201310371782.5 discloses a roller transmission mechanism for a flying saw. In order to solve the meshing transmission effect of the gear and the rack and ensure the transmission gap between the gear and the rack, the positional relationship between the roller and the rack seat can ensure that there is an appropriate gap between the gear and the rack, ensure the transmission accuracy, and reduce the wear between the gear and the rack; the roller limits the rack's jumping from above to avoid tooth jumping; at the same time, it also avoids the meshing line between the gear and the rack from moving outward, further ensuring the movement accuracy. The device is applied to the flying saw and has the function and effect of improving the movement accuracy of the flying saw.

[0003] Similar to the above application, there are still some shortcomings:

[0004] The position of the boss on the pressure roller is fixed and fits on the rack seat. During the sliding process of the rack seat, sliding friction occurs between the inner side of the boss and the rack seat. Long-term use will cause wear of the boss or the rack seat, affecting the stability of the transmission. In addition, during use, the boss and the pressure roller are integrally formed and can only adapt to a rack seat of fixed width, which is less practical. In addition, when the device is installed and used, due to the different heights of the frame, the height of the device cannot be adjusted, and the parallelism of the rack cannot be guaranteed, which reduces the displacement accuracy of the sports car during use.

[0005] For this reason, an adjustable pressure roller transmission mechanism for a flying saw machine is designed to optimize the above-mentioned problem. Utility Model Content

[0006] The main purpose of the utility model is to provide an adjustable pressure roller transmission mechanism for a flying saw machine, by slidingly arranging a limit plate on both sides of the pressure roller, and using an inner screw ring to squeeze the limit plate, the inner side of the limit plate is fitted and positioned with the outer side of the rack seat, so that the device can adapt to rack seats of different widths during use, and has higher applicability. In addition, by rotatably installing a ball on the inner side of the limit plate, the traditional sliding friction mode is converted into rolling friction, which effectively reduces the wear of the rack seat during continuous movement and improves the service life of the device. By arranging a base, a bidirectional screw, an adjustment block, a cross bar at the bottom of the transmission box and cooperating with a lifting mechanism composed of guide holes and notched grooves on the transmission box, the height of the device can be adjusted during use to ensure that the rack is in a horizontal state during the transmission process, thereby improving the accuracy of the displacement of the sports car during use.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] An adjustable pressure roller transmission mechanism for a flying saw machine comprises a transmission box, a gear shaft rotatably mounted inside the transmission box and connected to a servo motor, a gear located inside the transmission box and mounted on the gear shaft, a rack meshed with the top of the gear, a rack seat fixed to the top of the rack, and a pressure roller rotatably mounted between two sides of the transmission box and fitted to the top of the rack seat, both ends of the pressure roller are slidably provided with limit plates, the inner side of the limit plates fits on the side of the rack seat, both ends of the pressure roller are threadedly provided with inner screw rings for limiting the limit plates, and a lifting mechanism for adjusting the height of the transmission box is provided at the bottom of the transmission box.

[0009] Preferably: the outer side of the limit plate is evenly provided with mounting holes along the circumferential direction, and the mounting holes are arc-shaped at one end close to the rack seat, and balls are provided inside the mounting holes. The balls protrude from the outer side of the limit plate, and the balls are rollingly connected to the limit plate, and the balls are attached to the rack seat, and a positioning mechanism for the balls is provided inside the mounting holes.

[0010] Preferably: the positioning mechanism includes a top block and a retaining ring, the top block is slidably arranged inside the mounting hole, and the end of the top block is in contact with the surface of the ball, and a retaining ring is provided at one end of the outside of the mounting hole close to the inner screw ring, and the outer side of the retaining ring is in contact with the end of the inner screw ring.

[0011] Preferably, an arc groove is provided at one end of the top block that is in contact with the ball, and the ball is located inside the arc groove.

[0012] Preferably, the outer side of the inner screw ring is threadedly mounted with a locking bolt, and the top of the locking bolt is provided with a hexagonal adjustment groove.

[0013] Preferably: the lifting mechanism includes a base, a bidirectional screw, an adjusting block, a guide hole, a cross bar and a notched groove, the base is located below the transmission box, the transmission box is vertically slidably arranged inside the base, a bidirectional screw is rotatably installed between the two sides of the base, the end of the bidirectional screw passes through the base, the ends of the bidirectional screw are both installed with adjusting blocks, guide holes are symmetrically opened on both sides of the transmission box, the bottoms of the guide holes are inclined toward the middle position of the bottom end of the transmission box, cross bars are slidably arranged between the guide holes on both sides of the transmission box, the bidirectional screw passes through the cross bar and is threadedly connected to the cross bar, and notched grooves matching the bidirectional screws are opened on both sides of the bottom of the transmission box.

[0014] Preferably: positioning holes are evenly arranged on the outer side of the bottom of the base, and an anti-slip pad is arranged on the bottom of the base.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides an adjustable pressure roller transmission mechanism for a flying saw machine, which provides a limit plate on both sides of the pressure roller for sliding, and uses an inner screw ring to squeeze the limit plate, so that the inner side of the limit plate and the outer side of the rack seat are fitted and positioned, so that the device can adapt to rack seats of different widths during use, and has higher applicability. In addition, a ball bearing is rotatably installed on the inner side of the limit plate, so that the traditional sliding friction mode is converted into rolling friction, which effectively reduces the wear of the rack seat during continuous movement and increases the service life of the device.

[0017] By arranging a base, a bidirectional screw, an adjustment block, a cross bar at the bottom of the transmission box and cooperating with a lifting mechanism composed of guide holes and notched grooves on the transmission box, the height of the device can be adjusted during use to ensure that the rack is in a horizontal state during the transmission process, thereby improving the displacement accuracy of the sports car during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front cross-sectional view of the utility model;

[0019] Figure 2 This is a cross-sectional view of the pressure roller of the utility model;

[0020] Figure 3 This is a bottom structural diagram of the transmission box of the utility model;

[0021] Figure 4 It is a cross-sectional view of the top block of the utility model.

[0022] In the figure: 1. transmission box; 2. gear shaft; 3. gear; 4. rack; 5. rack seat; 6. pressure roller; 7. limit plate; 8. inner screw ring; 9. mounting hole; 10. ball bearing; 11. top block; 12. arc groove; 13. retaining ring; 14. lifting mechanism; 15. base; 16. bidirectional screw; 17. adjusting block; 18. guide hole; 19. cross bar; 20. notch groove. DETAILED DESCRIPTION

[0023] In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0024] like Figure 1-Figure 4As shown, this embodiment provides an adjustable pressure roller transmission mechanism for a flying saw machine, including a transmission box 1, a gear shaft 2 rotatably installed inside the transmission box 1 and connected to a servo motor, a gear 3 located inside the transmission box 1 and installed on the gear shaft 2, a rack 4 meshed with the top of the gear 3, a rack seat 5 fixed to the top of the rack 4, and a pressure roller 6 rotatably installed between the two sides of the transmission box 1 and attached to the top of the rack seat 5, both ends of the pressure roller 6 are slidably provided with a limit plate 7, the inner side of the limit plate 7 is attached to the side of the rack seat 5, both ends of the pressure roller 6 are threadedly installed with an inner screw ring 8 for limiting the limit plate 7, and the bottom of the transmission box 1 is provided with a lifting mechanism 14 for adjusting the height of the transmission box 1.

[0025] Overall working principle: During installation, fix the lifting mechanism 14 at the bottom of the transmission box 1 on the frame, and adjust the height of the transmission box 1 to ensure that the top rack 4 is parallel to the horizontal plane, then fix the rack seat 5 to the sports car, tighten the inner screw ring 8, and place the limit plate 7 tightly on both sides of the rack seat 5. The end of the gear shaft 2 is connected to the output shaft of the servo motor. When controlling the movement of the sports car, the servo motor drives the rotation of the gear shaft 2, and the gear 3 is meshed with the rack 4 to control the horizontal movement of the rack 4 and the rack seat 5, thereby controlling the stable movement of the sports car.

[0026] In this embodiment, mounting holes 9 are evenly opened on the outer side of the limit plate 7 along the circumferential direction, and the end of the mounting hole 9 close to the rack seat 5 is arc-shaped, and balls 10 are arranged inside the mounting holes 9. The balls 10 protrude from the outer side of the limit plate 7, and the balls 10 are rollingly connected to the limit plate 7, and the balls 10 are attached to the rack seat 5. A positioning mechanism for the balls 10 is arranged inside the mounting hole 9.

[0027] Local working principle: During the installation of the limit plate 7, the ball 10 is inserted into the inside of the installation hole 9. The ball 10 will protrude from the inner side of the limit plate 7 and contact the side of the rack seat 5. The positioning mechanism is then used to limit the position of the ball 10. At this time, during the sliding process of the rack seat 5, it will roll and connect with the ball 10, reducing the wear on the rack seat 5.

[0028] In this embodiment, the positioning mechanism includes a top block 11 and a retaining ring 13. The top block 11 is slidably arranged inside the mounting hole 9, and the end of the top block 11 is in contact with the surface of the ball 10. A retaining ring 13 is provided at one end of the outside of the mounting hole 9 close to the inner screw ring 8, and the outer side of the retaining ring 13 is in contact with the end of the inner screw ring 8.

[0029] Local working principle: After the ball 10 is inserted into the mounting hole 9, the top block 11 is inserted into the mounting hole 9, and the end of the top block 11 is fitted with the ball 10. After the top block 11 is inserted, the retaining ring 13 is inserted into the outside of the limit plate 7, and multiple groups of top blocks 11 are limited at the same time, and the retaining ring 13 is fitted with the inner screw ring 8 to limit the position of the retaining ring 13.

[0030] In this embodiment, an arc groove 12 is formed at one end of the top block 11 that is in contact with the ball 10 , and the ball 10 is located inside the arc groove 12 .

[0031] Local working principle: The arrangement of the arc groove 12 at the end of the top block 11 can reduce the local pressure on the ball 10 and reduce the wear of the ball 10 when it rotates, while ensuring the stability of the ball 10.

[0032] In this embodiment, the outer side of the inner screw ring 8 is threadedly mounted with a locking bolt, and the top of the locking bolt is provided with a hexagonal adjustment groove.

[0033] Partial working principle: After the inner screw ring 8 squeezes and positions the position of the limit plate 7, tighten the locking bolt to position the inner screw ring 8 again.

[0034] In this embodiment, the lifting mechanism 14 includes a base 15, a bidirectional screw 16, an adjustment block 17, a guide hole 18, a cross bar 19 and a notch groove 20. The base 15 is located below the transmission box 1, and the transmission box 1 is vertically slidably arranged inside the base 15. A bidirectional screw 16 is rotatably installed between the two sides of the base 15, and the end of the bidirectional screw 16 passes through the base 15. The ends of the bidirectional screw 16 are both installed with adjustment blocks 17. Guide holes 18 are symmetrically opened on both sides of the transmission box 1, and the bottoms of the guide holes 18 are inclined toward the middle position of the bottom end of the transmission box 1. Cross bars 19 are slidably arranged between the guide holes 18 on both sides of the transmission box 1. The bidirectional screw 16 passes through the cross bar 19 and is threadedly connected to the cross bar 19. Notch grooves 20 cooperating with the bidirectional screw 16 are opened on both sides of the bottom of the transmission box 1.

[0035] Local working principle: when it is necessary to control the transmission box 1 to rise and fall, rotate the bidirectional screw 16 to control the two sets of cross bars 19 to move toward or in the opposite direction. When the two sets of cross bars 19 move toward each other, due to the inclined setting of the guide hole 18, the cross bar 19 moves to the bottom end of the guide hole 18, thereby controlling the rise of the transmission box 1. When the two sets of cross bars 19 move in the opposite direction, the cross bar 19 moves to the top end of the guide hole 18, thereby reducing the installation height of the transmission box 1.

[0036] In this embodiment, positioning holes are evenly formed on the outer side of the bottom of the base 15 , and an anti-slip pad is provided on the bottom of the base 15 .

[0037] Local working principle: During the installation of the device, bolts are passed through the positioning holes to securely connect the device to the frame.

[0038] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and concept of the present invention within the scope disclosed by the present invention, which falls within the protection scope of the present invention.

Claims

1. An adjustable pressure roller transmission mechanism for a flying saw machine, comprising a transmission box (1), a gear shaft (2) rotatably mounted inside the transmission box (1) and connected to a servo motor, a gear (3) located inside the transmission box (1) and mounted on the gear shaft (2), a rack (4) meshed with the top of the gear (3), a rack seat (5) fixed to the top of the rack (4), and a pressure roller (6) rotatably mounted between two sides of the transmission box (1) and attached to the top of the rack seat (5), characterized in that: Both ends of the pressure roller (6) are slidably provided with a limit plate (7), the inner side of the limit plate (7) is fitted on the side of the rack seat (5), and the two ends of the pressure roller (6) are threadedly installed with an inner screw ring (8) for limiting the limit plate (7), and the bottom of the transmission box (1) is provided with a lifting mechanism (14) for adjusting the height of the transmission box (1).

2. The adjustable pressure roller transmission mechanism for a flying saw according to claim 1, characterized in that: The outer side of the limiting plate (7) is uniformly provided with mounting holes (9) along the circumferential direction, and the end of the mounting hole (9) close to the rack seat (5) is arc-shaped, and the interior of the mounting hole (9) is provided with a ball (10), the ball (10) protrudes from the outer side of the limiting plate (7), the ball (10) and the limiting plate (7) are rollingly connected, and the ball (10) is attached to the rack seat (5), and a positioning mechanism for the ball (10) is provided inside the mounting hole (9).

3. The adjustable pressure roller transmission mechanism for a flying saw according to claim 2, characterized in that: The positioning mechanism comprises a top block (11) and a retaining ring (13); the top block (11) is slidably arranged inside the mounting hole (9), and the end of the top block (11) is in contact with the surface of the ball (10); a retaining ring (13) is arranged at one end of the mounting hole (9) close to the inner screw ring (8), and the outer side of the retaining ring (13) is in contact with the end of the inner screw ring (8).

4. The adjustable pressure roller transmission mechanism for a flying saw according to claim 3 is characterized in that: An arc groove (12) is provided at one end of the top block (11) that is in contact with the ball (10), and the ball (10) is located inside the arc groove (12).

5. The adjustable pressure roller transmission mechanism for a flying saw according to claim 1, characterized in that: The outer side of the inner screw ring (8) is threadedly mounted with a locking bolt, and the top of the locking bolt is provided with a hexagonal adjustment groove.

6. An adjustable pressure roller transmission mechanism for a flying saw according to any one of claims 1 to 5, characterized in that: The lifting mechanism (14) comprises a base (15), a bidirectional screw (16), an adjusting block (17), a guide hole (18), a cross bar (19) and a notch groove (20). The base (15) is located below the transmission box (1). The transmission box (1) is vertically slidably arranged inside the base (15). A bidirectional screw (16) is rotatably installed between the two sides of the base (15). The ends of the bidirectional screw (16) penetrate the base (15). The ends of the bidirectional screw (16) are both installed An adjusting block (17) is provided. Guide holes (18) are symmetrically provided on both sides of the transmission box (1). The bottoms of the guide holes (18) are inclined toward the middle position of the bottom end of the transmission box (1). A cross bar (19) is slidably provided between the guide holes (18) on both sides of the transmission box (1). The bidirectional screw rod (16) passes through the cross bar (19) and is threadedly connected to the cross bar (19). Notch grooves (20) matching the bidirectional screw rod (16) are provided on both sides of the bottom of the transmission box (1).

7. The adjustable pressure roller transmission mechanism for a flying saw according to claim 6, characterized in that: Positioning holes are evenly arranged on the outer side of the bottom of the base (15), and an anti-slip pad is arranged on the bottom of the base (15).

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